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首页> 外文期刊>Journal of Energy Engineering >Distributed Energy Storage with Real and Reactive Power Controller for Power Quality Issues Caused by Renewable Energy and Electric Vehicles
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Distributed Energy Storage with Real and Reactive Power Controller for Power Quality Issues Caused by Renewable Energy and Electric Vehicles

机译：利用有功和无功功率控制器进行分布式储能，解决可再生能源和电动汽车引起的电能质量问题

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摘要

The integration of renewable energy sources (RE) and electric vehicles (EV) into the low voltage (LV) networks can create a number of power quality issues. RE or EV can cause voltage unbalance and low power factor when it injects or absorbs real power from the network. The energy storage system can be connected to the network to manipulate the power flow from or to those devices with the use of reactive power as a complementary support, hence correcting the voltage unbalance and power factor effectively without wasting any generated energy. To be able to correct the voltage unbalance and power factor effectively under the intermittent power of RE and EV, a novel fuzzy controller is developed and implemented in the energy storage to manipulate the flow of real and reactive power between the energy storage and the network based on the network conditions. The fuzzy controller is able to reduce any voltage excursions with the use of real and reactive power from the energy storage, hence reducing the voltage unbalance and improving the power factor. Numerous experiments have been carried out to verify the effectiveness of the fuzzy controller. The experimental results show that the voltage unbalance and power factors are constantly maintained below the thresholds under the high intermittent power output of the photovoltaic systems.
机译：将可再生能源（RE）和电动汽车（EV）集成到低压（LV）网络中会产生许多电能质量问题。 RE或EV从网络注入或吸收有功功率时，可能会导致电压不平衡和低功率因数。可以将能量存储系统连接到网络，以使用无功功率作为补充支持来控制进出这些设备的功率，从而有效地校正电压不平衡和功率因数，而不会浪费任何产生的能量。为了能够在RE和EV的间歇性功率下有效地校正电压不平衡和功率因数，开发了一种新型模糊控制器，并在储能器中实现，以控制有功功率和无功功率之间的有功和无功功率流。在网络条件下。模糊控制器能够通过使用储能器中的有功功率和无功功率来减少任何电压偏移，从而减少电压不平衡并提高功率因数。已经进行了许多实验以验证模糊控制器的有效性。实验结果表明，在光伏系统的高间歇功率输出下，电压不平衡和功率因数始终保持在阈值以下。

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